Missouri, a gateway for westward migration and a settlement hub for immigrants, offers a wealth of citizenship and naturalization records. Prior to 1906, naturalizations were conducted in various courts—county, circuit, criminal, and probate—with records varying widely. Key urban centers like St. Louis and Kansas City generated significant volumes of records. Post-1906 U.S. District Court records provide standardized, detailed information, including biographical data and family details. Missouri’s records capture the experiences of German, Irish, Italian, and Eastern European immigrants. Federal passport applications complement these records by offering additional personal insights. For genealogists, Missouri’s naturalization records illuminate the diverse journeys and contributions of the state’s immigrant ancestors.
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Immigration & Travel
Citizenship, Passport and Naturalization
- Missouri, Naturalizations 152,169 records
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